Question

a highway leads to the foot of 300 m high tower . an observatory is set at the top of the tower . it sees a car moving towards it at an angle of depression become 60 degree .
(1) find the distance travelled by the car during this time.
(2) how this observatory is helpful to regulate the traffic on the highway .

Answer 1

Answer:

Step-by-step explanation:

First let triangle ABC

AB/BC=tan60'

We given AB=300m

SO, Put Value of AB

Then we get root3BC=300

So now BC= 300/root3 rationalise

We get BC=100root3